Sizes

Maximum sizes for bifold windows vary by width, height, wind zone, and glazing requirement. Your local Nulook fabricator will be able to advise you whether a configuration is possible or contact Altus Technical support.

As a guide, bifold window panels up to 1.4m high by 0.8m wide are recommended.

Frame Types

Open in and open out frames with a 19mm facing cover and 24mm glazing pocket (available only as screwed frame). Available in top hung or bottom rolling.

Inline fold back bifold open out option, which incorporates a smooth sill, is available.

An over light transom and heavy duty adaptor are available.

Glazing, Beads and Panel Types

Hinges at panel junction. The surface fitted hinges at these junctions achieve 2 critical objectives: – unbroken seals between the door stiles – an uncluttered appearance when doors in the open position with no visible hinge plates or screws.

Beaded rails and stiles can be used to provide for a wide range of glazing options from 4mm to 24mm.

A range of 11 beads are available to accommodate glazing options from 4mm to 24mm and to provide a variety of finishing styles from sloped to square.

A French door adaptor and sash adaptor are also available within the range.

Configurations

For bifold windows, we recommend fully captive configurations 2 and 0, 2 and 2, or 4 and 0.

We do not recommended loose panel options with an odd number of panels sliding in one direction, i.e. 2 and 1, 3 and 0, 4 and 1, or 3 and 2. This is because the configuration requires additional latching, which may be difficult to operate in some instances such as over a kitchen bench.

Window Ventilation

Aluvent passive ventilator enables passive ventilation to be included into all bifold window panels. Refer to the Aluvent section.

Flashings

A standard range of flashings include 95mm, 84mm, 71mm, 68mm, 63mm, 58mm, 53mm, 48mm, 45mm, 41mm, 38mm, 31mm, 25mm and 14mm. These have been designed to comply with E2/AS1 Amendment 6 requirements.Refer to the flashings section.